Pole for galvanic batteries



(Nq Model.)

B. F. BLAGKALL & J. C. DECKER. POLE POR GALVANIC BATTERIES.

l Patented Apr .1|NVENTPS- M.. j. JMM...

. UNITED STATES PATENT Oiu'uCE.

BURTON F. BLACKALL AND JOHN. C. DECKER, OF ROCHESTER, NEW YORK.

l POLE FOR `GALVANIC BATTERIES.

SPECIFICATION formngpart of Letters Patent N0. 274,899, dated April 3, 1883.

Application filed January 27, 1883. (N o model.)

To all whom it may concern Be it known that we, BURTON F. BLACKALL and JOHN AC. DECKER, of' Rochester, in the county oi' Monroe, in the State of New York, have invented new and useful Improvements in Poles for Galvanic Batteries, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

This invention consstsin an improved construction ot' a battery-pole or carbon batterycup which is simplerand less'expensive than other batteries ot'lthat class, and at the saine time presents a greater amount of carbon surface in a most effective manner.

The invention alsoconsists in the c0mbination, with the aforesaid improved carbon-cup, of a cap composed of brass or phosphor-bronze and detachably connected to an extension of one of the sides of said cup, and a bindingpost affixed t0 said cap. This arrangement of the removable cap admits of readily cleaning, repairing, or renewing the same when required, all as hereinafter more fully explained, and set f'orth in the claim.

The invention is fully illustrated in the annexed drawings, wherein Figure 1 is a perspective View ot' our improved carbon batterycup, and Fig. 2 is a vertical transverse section of the same.

Similar letters of reference indicate corresponding parts.

a a a and a represent the walls of the bat- `tery-cup, joined preferably at righty angles at seals b b of asphaltum or other suitable cover applied to the ends of said frame or case. One of the carbon walls or plates, a', is formed with a vertical extension, and to the end ot' this We detachably connect acap, A, ot' brass or of phosphorQbronze, provided with a binding-post, e, for the attachment of the conducting-wiref. In order to guard against corrosion of the said cap by its exposure to the chemicals in Which'the carbon pole is set, we cover the joint around the cap-with rubber cement, or other suitable non-conducting coat- Y ing.

We do notclaim, broadly, the combination of the packing of broken carbonwitlh any suitable inclosing-casaas we are aware that the same is not new; but

What we do claim as ourinvention, and dc- ,manner described and shown.

In testimony Whereofwe have hereunto signed our names and affixed our seals, in the presence of two attesting Witnesses, at Rochester, in the county ot'OMonroe, in the State of New York, this 22d day of J annary, 1883.

BURTON F. BLAOKALL. lL. sj

JOHN C. DECKER. lL. s.] Vitnesses JOHN G. HAAP,

S. SEAMAN. i 

